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Added option to set labels clipping...
Added option to set labels clipping It's now possible to enable and disable the point label clipping. The clipping is enabled by default. Clipping cuts the point labels on the edge of the plot area. Change-Id: Ifaa6017b4c6d55fe030effeec8b336a7fc317adf Task-number: QTRD-3520 Reviewed-by: Miikka Heikkinen <miikka.heikkinen@theqtcompany.com>
Titta Heikkala - - Load All Authors

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r2814:79dc9c599f41
r2815:4c1d3bc34edb
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abstractbarchartitem.cpp
361 lines | 12.2 KiB | text/x-c | CppLexer
/ src / charts / barchart / abstractbarchartitem.cpp
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refactoring internal barchart items
 r1674 /****************************************************************************
**
Titta Heikkala
Copyright header changes...
 r2776 ** Copyright (C) 2015 The Qt Company Ltd
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 r1674 ** All rights reserved.
Titta Heikkala
Copyright header changes...
 r2776 ** For any questions to The Qt Company, please use contact form at http://qt.io
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refactoring internal barchart items
 r1674 **
Titta Heikkala
Updated license headers...
 r2740 ** This file is part of the Qt Charts module.
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refactoring internal barchart items
 r1674 **
Titta Heikkala
Updated license headers...
 r2740 ** Licensees holding valid commercial license for Qt may use this file in
** accordance with the Qt License Agreement provided with the Software
** or, alternatively, in accordance with the terms contained in a written
Titta Heikkala
Copyright header changes...
 r2776 ** agreement between you and The Qt Company.
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refactoring internal barchart items
 r1674 **
** If you have questions regarding the use of this file, please use
Titta Heikkala
Updated license headers...
 r2740 ** contact form at http://qt.io
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refactoring internal barchart items
 r1674 **
****************************************************************************/
Titta Heikkala
Fix include syntax...
 r2714 #include <private/abstractbarchartitem_p.h>
#include <private/bar_p.h>
#include <QtCharts/QBarSet>
#include <private/qbarset_p.h>
#include <QtCharts/QAbstractBarSeries>
#include <private/qabstractbarseries_p.h>
#include <QtCharts/QChart>
#include <private/chartpresenter_p.h>
#include <private/charttheme_p.h>
#include <private/baranimation_p.h>
#include <private/chartdataset_p.h>
#include <QtGui/QPainter>
#include <QtGui/QTextDocument>
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refactoring internal barchart items
 r1674
Titta Heikkala
Qt Charts project file structure change...
 r2712 QT_CHARTS_BEGIN_NAMESPACE
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refactoring internal barchart items
 r1674
Michal Klocek
Refactors internals...
 r2273 AbstractBarChartItem::AbstractBarChartItem(QAbstractBarSeries *series, QGraphicsItem* item) :
ChartItem(series->d_func(),item),
sauimone
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 r1674 m_animation(0),
m_series(series)
{
sauimone
fix: changing barset colors no more triggers layout calculations
 r1917
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refactoring internal barchart items
 r1674 setFlag(ItemClipsChildrenToShape);
Titta Heikkala
Add pressed, released and doubleClicked signals...
 r2739 setFlag(QGraphicsItem::ItemIsSelectable);
sauimone
fix: changing barset colors no more triggers layout calculations
 r1917 connect(series->d_func(), SIGNAL(updatedLayout()), this, SLOT(handleLayoutChanged()));
connect(series->d_func(), SIGNAL(updatedBars()), this, SLOT(handleUpdatedBars()));
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refactoring internal barchart items
 r1674 connect(series->d_func(), SIGNAL(labelsVisibleChanged(bool)), this, SLOT(handleLabelsVisibleChanged(bool)));
connect(series->d_func(), SIGNAL(restructuredBars()), this, SLOT(handleDataStructureChanged()));
connect(series, SIGNAL(visibleChanged()), this, SLOT(handleVisibleChanged()));
Tero Ahola
Added opacity property to QAbstractSeries
 r2067 connect(series, SIGNAL(opacityChanged()), this, SLOT(handleOpacityChanged()));
Titta Heikkala
Added possibility to show series value...
 r2689 connect(series, SIGNAL(labelsFormatChanged(QString)), this, SLOT(handleUpdatedBars()));
connect(series, SIGNAL(labelsFormatChanged(QString)), this, SLOT(positionLabels()));
connect(series, SIGNAL(labelsPositionChanged(QAbstractBarSeries::LabelsPosition)),
this, SLOT(handleLabelsPositionChanged()));
Miikka Heikkinen
Added support for bar series value label angle...
 r2802 connect(series, SIGNAL(labelsAngleChanged(qreal)), this, SLOT(positionLabels()));
Marek Rosa
Bar animations refactored
 r2316 setZValue(ChartPresenter::BarSeriesZValue);
sauimone
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 r1674 handleDataStructureChanged();
Marek Rosa
BarChartItems code cleanup
 r2305 handleVisibleChanged();
handleUpdatedBars();
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refactoring internal barchart items
 r1674 }
AbstractBarChartItem::~AbstractBarChartItem()
{
}
void AbstractBarChartItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
Q_UNUSED(painter);
Q_UNUSED(option);
Q_UNUSED(widget);
}
QRectF AbstractBarChartItem::boundingRect() const
{
return m_rect;
}
void AbstractBarChartItem::applyLayout(const QVector<QRectF> &layout)
{
Marek Rosa
Bar animations refactored
 r2316 QSizeF size = geometry().size();
if (geometry().size().isValid()) {
if (m_animation) {
if (m_layout.count() == 0 || m_oldSize != size) {
initializeLayout();
m_oldSize = size;
}
m_animation->setup(m_layout, layout);
presenter()->startAnimation(m_animation);
} else {
setLayout(layout);
update();
}
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refactoring internal barchart items
 r1674 }
}
Marek Rosa
Bar animations refactored
 r2316 void AbstractBarChartItem::setAnimation(BarAnimation *animation)
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 r1674 {
m_animation = animation;
}
void AbstractBarChartItem::setLayout(const QVector<QRectF> &layout)
{
if (layout.count() != m_bars.count())
return;
Michal Klocek
Refactors Domain and Axis...
 r1698 m_layout = layout;
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refactoring internal barchart items
 r1674
Titta Heikkala
Added possibility to show series value...
 r2689 for (int i = 0; i < m_bars.count(); i++)
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 r1674 m_bars.at(i)->setRect(layout.at(i));
Marek Rosa
BarChartItems code cleanup
 r2305
Titta Heikkala
Added possibility to show series value...
 r2689 positionLabels();
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refactoring internal barchart items
 r1674 }
//handlers
Michal Klocek
Refactors Domain and Axis...
 r1698 void AbstractBarChartItem::handleDomainUpdated()
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 r1674 {
Michal Klocek
Refactors Domain and Axis...
 r1698 m_domainMinX = domain()->minX();
m_domainMaxX = domain()->maxX();
m_domainMinY = domain()->minY();
m_domainMaxY = domain()->maxY();
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 r1674
Michal Klocek
Refactors internals...
 r2273 QRectF rect(QPointF(0,0),domain()->size());
if(m_rect != rect){
prepareGeometryChange();
m_rect = rect;
}
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 r1674 handleLayoutChanged();
}
void AbstractBarChartItem::handleLayoutChanged()
{
Jani Honkonen
astyle and manual coding style fixes for src-folder
 r2097 if ((m_rect.width() <= 0) || (m_rect.height() <= 0))
return; // rect size zero.
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refactoring internal barchart items
 r1674 QVector<QRectF> layout = calculateLayout();
applyLayout(layout);
Marek Rosa
BarChart brush and labels fix
 r2311 handleUpdatedBars();
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refactoring internal barchart items
 r1674 }
void AbstractBarChartItem::handleLabelsVisibleChanged(bool visible)
{
Miikka Heikkinen
Added HTML support for various text items...
 r2539 foreach (QGraphicsTextItem *label, m_labels)
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 r1674 label->setVisible(visible);
update();
}
void AbstractBarChartItem::handleDataStructureChanged()
{
Jani Honkonen
astyle and manual coding style fixes for src-folder
 r2097 foreach (QGraphicsItem *item, childItems())
sauimone
refactoring internal barchart items
 r1674 delete item;
m_bars.clear();
m_labels.clear();
m_layout.clear();
// Create new graphic items for bars
for (int c = 0; c < m_series->d_func()->categoryCount(); c++) {
for (int s = 0; s < m_series->count(); s++) {
QBarSet *set = m_series->d_func()->barsetAt(s);
// Bars
Jani Honkonen
astyle and manual coding style fixes for src-folder
 r2097 Bar *bar = new Bar(set, c, this);
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refactoring internal barchart items
 r1674 m_bars.append(bar);
Jani Honkonen
normalize signal/slot signatures
 r2110 connect(bar, SIGNAL(clicked(int,QBarSet*)), m_series, SIGNAL(clicked(int,QBarSet*)));
Titta Heikkala
Add hovered signal with index for bar charts...
 r2600 connect(bar, SIGNAL(hovered(bool, int, QBarSet*)), m_series, SIGNAL(hovered(bool, int, QBarSet*)));
Titta Heikkala
Add pressed, released and doubleClicked signals...
 r2739 connect(bar, SIGNAL(pressed(int, QBarSet*)), m_series, SIGNAL(pressed(int, QBarSet*)));
connect(bar, SIGNAL(released(int, QBarSet*)),
m_series, SIGNAL(released(int, QBarSet*)));
connect(bar, SIGNAL(doubleClicked(int, QBarSet*)),
m_series, SIGNAL(doubleClicked(int, QBarSet*)));
Jani Honkonen
normalize signal/slot signatures
 r2110 connect(bar, SIGNAL(clicked(int,QBarSet*)), set, SIGNAL(clicked(int)));
Titta Heikkala
Add hovered signal with index for bar charts...
 r2600 connect(bar, SIGNAL(hovered(bool, int, QBarSet*)), set, SIGNAL(hovered(bool, int)));
Titta Heikkala
Add pressed, released and doubleClicked signals...
 r2739 connect(bar, SIGNAL(pressed(int, QBarSet*)), set, SIGNAL(pressed(int)));
connect(bar, SIGNAL(released(int, QBarSet*)), set, SIGNAL(released(int)));
connect(bar, SIGNAL(doubleClicked(int, QBarSet*)), set, SIGNAL(doubleClicked(int)));
Marek Rosa
Bar animations refactored
 r2316 // m_layout.append(QRectF(0, 0, 1, 1));
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 r1674
// Labels
Miikka Heikkinen
Fix text item margins...
 r2592 QGraphicsTextItem *newLabel = new QGraphicsTextItem(this);
newLabel->document()->setDocumentMargin(ChartPresenter::textMargin());
m_labels.append(newLabel);
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refactoring internal barchart items
 r1674 }
}
Michal Klocek
Refactors internals...
 r2273 if(themeManager()) themeManager()->updateSeries(m_series);
sauimone
refactoring internal barchart items
 r1674 handleLayoutChanged();
Marek Rosa
BarChart brush and labels fix
 r2311 handleVisibleChanged();
sauimone
refactoring internal barchart items
 r1674 }
void AbstractBarChartItem::handleVisibleChanged()
{
bool visible = m_series->isVisible();
sauimone
barlabel visibility fix
 r2309 if (visible)
handleLabelsVisibleChanged(m_series->isLabelsVisible());
else
handleLabelsVisibleChanged(visible);
foreach (QGraphicsItem *bar, m_bars)
bar->setVisible(visible);
Tero Ahola
Added opacity property to QAbstractSeries
 r2067 }
void AbstractBarChartItem::handleOpacityChanged()
{
Jani Honkonen
astyle and manual coding style fixes for src-folder
 r2097 foreach (QGraphicsItem *item, childItems())
Tero Ahola
Added opacity property to QAbstractSeries
 r2067 item->setOpacity(m_series->opacity());
sauimone
refactoring internal barchart items
 r1674 }
sauimone
fix: changing barset colors no more triggers layout calculations
 r1917 void AbstractBarChartItem::handleUpdatedBars()
{
Titta Heikkala
Improve theme initialization performance for bar series...
 r2598 if (!m_series->d_func()->blockBarUpdate()) {
// Handle changes in pen, brush, labels etc.
int categoryCount = m_series->d_func()->categoryCount();
int setCount = m_series->count();
int itemIndex(0);
Titta Heikkala
Added possibility to show series value...
 r2689 static const QString valueTag(QLatin1String("@value"));
Titta Heikkala
Improve theme initialization performance for bar series...
 r2598
for (int category = 0; category < categoryCount; category++) {
for (int set = 0; set < setCount; set++) {
QBarSetPrivate *barSet = m_series->d_func()->barsetAt(set)->d_ptr.data();
Bar *bar = m_bars.at(itemIndex);
bar->setPen(barSet->m_pen);
bar->setBrush(barSet->m_brush);
bar->update();
QGraphicsTextItem *label = m_labels.at(itemIndex);
Titta Heikkala
Added possibility to show series value...
 r2689 QString valueLabel;
Miikka Heikkinen
Added QChart::localizeNumbers...
 r2707 if (presenter()) { // At startup presenter is not yet set, yet somehow update comes
Titta Heikkala
Fixed bar label visibility...
 r2814 if (barSet->value(category) == 0) {
label->setVisible(false);
Miikka Heikkinen
Added QChart::localizeNumbers...
 r2707 } else {
Titta Heikkala
Fixed bar label visibility...
 r2814 label->setVisible(true);
if (m_series->labelsFormat().isEmpty()) {
valueLabel = presenter()->numberToString(barSet->value(category));
} else {
valueLabel = m_series->labelsFormat();
valueLabel.replace(valueTag,
Miikka Heikkinen
Added QChart::localizeNumbers...
 r2707 presenter()->numberToString(barSet->value(category)));
Titta Heikkala
Fixed bar label visibility...
 r2814 }
Miikka Heikkinen
Added QChart::localizeNumbers...
 r2707 }
Titta Heikkala
Added possibility to show series value...
 r2689 }
label->setHtml(valueLabel);
Titta Heikkala
Improve theme initialization performance for bar series...
 r2598 label->setFont(barSet->m_labelFont);
label->setDefaultTextColor(barSet->m_labelBrush.color());
label->update();
itemIndex++;
}
sauimone
fix: changing barset colors no more triggers layout calculations
 r1917 }
}
}
Titta Heikkala
Added possibility to show series value...
 r2689 void AbstractBarChartItem::handleLabelsPositionChanged()
{
positionLabels();
}
void AbstractBarChartItem::positionLabels()
{
Miikka Heikkinen
Added support for bar series value label angle...
 r2802 // By default position labels on horizontal bar series
// Vertical bar series overload positionLabels() to call positionLabelsVertical()
QTransform transform;
const qreal angle = m_series->d_func()->labelsAngle();
if (angle != 0.0)
transform.rotate(angle);
Titta Heikkala
Added possibility to show series value...
 r2689 for (int i = 0; i < m_layout.count(); i++) {
QGraphicsTextItem *label = m_labels.at(i);
Miikka Heikkinen
Added support for bar series value label angle...
 r2802
QRectF labelRect = label->boundingRect();
QPointF center = labelRect.center();
Titta Heikkala
Added possibility to show series value...
 r2689 qreal xPos = 0;
Miikka Heikkinen
Added support for bar series value label angle...
 r2802 qreal yPos = m_layout.at(i).center().y() - center.y();
int xDiff = 0;
if (angle != 0.0) {
label->setTransformOriginPoint(center.x(), center.y());
label->setRotation(m_series->d_func()->labelsAngle());
qreal oldWidth = labelRect.width();
labelRect = transform.mapRect(labelRect);
xDiff = (labelRect.width() - oldWidth) / 2;
}
Titta Heikkala
Added possibility to show series value...
 r2689
Titta Heikkala
Fix bar value label position...
 r2697 int offset = m_bars.at(i)->pen().width() / 2 + 2;
Miikka Heikkinen
Added support for bar series value label angle...
 r2802
switch (m_series->labelsPosition()) {
case QAbstractBarSeries::LabelsCenter:
xPos = m_layout.at(i).center().x() - center.x();
break;
case QAbstractBarSeries::LabelsInsideEnd:
xPos = m_layout.at(i).right() - labelRect.width() - offset + xDiff;
break;
case QAbstractBarSeries::LabelsInsideBase:
xPos = m_layout.at(i).left() + offset + xDiff;
break;
case QAbstractBarSeries::LabelsOutsideEnd:
xPos = m_layout.at(i).right() + offset + xDiff;
break;
default:
// Invalid position, never comes here
break;
}
label->setPos(xPos, yPos);
label->setZValue(zValue() + 1);
}
}
void AbstractBarChartItem::positionLabelsVertical()
{
QTransform transform;
const qreal angle = m_series->d_func()->labelsAngle();
if (angle != 0.0)
transform.rotate(angle);
for (int i = 0; i < m_layout.count(); i++) {
QGraphicsTextItem *label = m_labels.at(i);
QRectF labelRect = label->boundingRect();
QPointF center = labelRect.center();
qreal xPos = m_layout.at(i).center().x() - center.x();
qreal yPos = 0;
int yDiff = 0;
if (angle != 0.0) {
label->setTransformOriginPoint(center.x(), center.y());
label->setRotation(m_series->d_func()->labelsAngle());
qreal oldHeight = labelRect.height();
labelRect = transform.mapRect(labelRect);
yDiff = (labelRect.height() - oldHeight) / 2;
}
int offset = m_bars.at(i)->pen().width() / 2 + 2;
switch (m_series->labelsPosition()) {
case QAbstractBarSeries::LabelsCenter:
yPos = m_layout.at(i).center().y() - center.y();
break;
case QAbstractBarSeries::LabelsInsideEnd:
yPos = m_layout.at(i).top() + offset + yDiff;
break;
case QAbstractBarSeries::LabelsInsideBase:
yPos = m_layout.at(i).bottom() - labelRect.height() - offset + yDiff;
break;
case QAbstractBarSeries::LabelsOutsideEnd:
yPos = m_layout.at(i).top() - labelRect.height() - offset + yDiff;
break;
default:
// Invalid position, never comes here
break;
}
Titta Heikkala
Added possibility to show series value...
 r2689
label->setPos(xPos, yPos);
label->setZValue(zValue() + 1);
}
}
sauimone
refactoring internal barchart items
 r1674 #include "moc_abstractbarchartitem_p.cpp"
Titta Heikkala
Qt Charts project file structure change...
 r2712 QT_CHARTS_END_NAMESPACE